A law enforcement official, speaking on condition of anonymity because the person was not authorized to discuss the investigation publicly, said Ciancia was wearing fatigues and carrying a bag containing a one-page handwritten note that said he wanted to kill TSA employees and “pigs.”

The official said the rant refers to how Ciancia believed his constitutional rights were being violated by TSA searches and that he’s a “pissed-off patriot” upset at former Department of Homeland Security Secretary Janet Napolitano. The note and the gunman’s rifle each had an orange TSA inspection sticker on it.

The note also reportedly ended with the letters NWO, or New World Order.